Spring MVC request flow

最新推荐文章于 2025-09-05 16:34:31 发布

转载最新推荐文章于 2025-09-05 16:34:31 发布 · 138 阅读

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#java #测试

本文详细介绍了浏览器请求到服务器端的整个流程，特别是基于MVC架构的处理方式。从用户输入URL开始，请求如何被Dispatcher Servlet接收，并作为中央入口点进行处理；接着确定合适的控制器来处理请求；然后控制器更新模型并返回视图名称及模型数据；再由Dispatcher Servlet确定使用哪个视图进行渲染；最后视图使用模型数据填充网页内容，完成最终页面的渲染。

1. When we enter a URL in the browser, the request comes to the dispatcher servlet.
The dispatcher servlet then acts as a centralized entry point to the web application.
2. The dispatcher servlet determines a suitable controller that is capable of handling the
request and dispatching this request to the controller.
3. The controller method updates objects in the model and returns the logical view name
and updated model to the dispatcher servlet.
4. The dispatcher servlet consults with the view resolver to determine which view to
render and passes the model data to that view.
5. The view furnishes the dynamic values in the web page using the model data, renders
the final web page, and returns this web page to the dispatcher servlet.
6. At the end, the dispatcher servlet returns the final, rendered page as a response to the
browser.